Spare o'ring for Bigblue TL/VL/VTL 2800, 3100, 3800, 4200
BigBlue
In stock
This individual filter allows to avoid "pollution" of a diving block when inflating if there is a doubt about the quality of air (due to a bad maintenance) delivered by the compressor. Also ideal for protecting your "Oxy-clean" blocks.
The non-return valve avoids explosions in case of bad manipulation during the inflation procedure. If the pressure in the O2-filled diving block is higher than the pressure upstream of the overfilter, the valve will prevent a return of Oxygen into the cartridge and avoid the auto-ignition of the activated carbon by temperature rise (adiabatic compression).
Please note, this overfilter is not suitable for inflation with pure oxygen.